ZyXEL Communications 2864 Series, User Manual, Page: 138 / 267

12–4
It will try these two alternatives indefinitely. If the dial backup attempt succeeds,
the value of S-register
S34
determines the interval of the dial backup connection
before going back to check the leased line.
A semi-auto dial backup is selected if
S44.2=1
. In this mode, when making dial
backup, the modem will display DIAL BACKUP? and wait for the user's confirma-
tion. Only when the panel confirmation is pressed will the modem start the dial
backup. This saves unnecessary dial backup connections when the line is not in use,
e.g., non-business hours.
Aborting from Leased-Line Operation
If the leased line has not been connected, pressing any key on the front panel will
abort the attempt to connect on the leased line. If dial backup is enabled, backup
action will be taken. Pressing any key again will abort the backup action and revert
to the
IDLE SCREEN display.
Disconnecting a Leased-Line Connection
Disconnecting (manually) the leased line will force the LCD-model to switch to the
IDLE SCREEN . Either going on-line manually or, if you have set the leased line as
the power-on default, turning the power OFF and ON, will make the modem go to
the leased line again.
Pressing the DATA/VOICE switch on the non-LCD model will switch the modem
on/off the connected leased line.
ATS34=0
The dial backup line continues to be used indefinitely.
ATS34=n
;
(1
≤
n
≤
255;
default: 30)
Reattempts leased line after
n
minutes. If the leased line
has still not been recovered, the modem will continue to
use the dial backup line.